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4x-y = -5 in y=mx+b form

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1 Answer

Hi Sterling;
y=mx+b
m=slope
b=y-intercept, the value of y when x=0.
 
4x-y = -5
We need to isolate y.
Let's begin with subtracting 4x from both sides...
-4x+4x-y=-5-4x
-y=-5-4x
Let's multiply both sides by -1...
-1(-y)=-1(-5-4x)
y=5+4x
or, to be consistent with y=mx+b..
y=4x+5
 
Does this help?  If not, please let me know.